Trading cryptocurrency aren't for kid's , it's for people with matured mind. Going into cryptocurrency trading , one have to build up is mindset to be patient to trade for a long time. One of the problem that affects traders during trading is that they think so fast to make profits . Trading cryptocurrency for a very short time always is not the best as a trader . Successful traders I have come across go into longtime investment , trading is not just acquiring cryptocurrency but trading comes from the mindset. If the mind is not on positive direction it can result to bad outcomes. And at this point now that the cryptocurrency price is low it's best time to go into longtime trading that will yield good profits in time to come.
So, do not be too hasty to make profits , short time trading don't pay much
Maybe what to be desperate is when we lose, don't to desperate to get our capital back. Because it can lead us to do anything that can made us suffer. Why not, like what OP said, we need matured mind to do trading because if we put our emotion we can be wrong to make decision and made us lose. That can be worse thing happen to us. About age, i think it is no matter how much our age as long it not disrupt our live.